function BookTest::testGetTableOfContents

Tests BookManager::getTableOfContents().

File

core/modules/book/tests/src/Functional/BookTest.php, line 335

Class

BookTest

Create a book, add pages, and test book interface.

Namespace

Code

public function testGetTableOfContents() : void {
    // Create new book.
    $nodes = $this->createBook();
    $book = $this->book;
    $this->drupalLogin($this->bookAuthor);
    
    /*
     * Add Node 5 under Node 2.
     * Add Node 6, 7, 8, 9, 10, 11 under Node 3.
     * Book
     *  |- Node 0
     *   |- Node 1
     *   |- Node 2
     *    |- Node 5
     *  |- Node 3
     *   |- Node 6
     *    |- Node 7
     *     |- Node 8
     *      |- Node 9
     *       |- Node 10
     *        |- Node 11
     *  |- Node 4
     */
    foreach ([
        5 => 2,
        6 => 3,
        7 => 6,
        8 => 7,
        9 => 8,
        10 => 9,
        11 => 10,
    ] as $child => $parent) {
        $nodes[$child] = $this->createBookNode($book->id(), $nodes[$parent]->id());
    }
    $this->drupalGet($nodes[0]->toUrl('edit-form'));
    // Since Node 0 has children 2 levels deep, nodes 10 and 11 should not
    // appear in the selector.
    $this->assertSession()
        ->optionNotExists('edit-book-pid', $nodes[10]->id());
    $this->assertSession()
        ->optionNotExists('edit-book-pid', $nodes[11]->id());
    // Node 9 should be available as an option.
    $this->assertSession()
        ->optionExists('edit-book-pid', $nodes[9]->id());
    // Get a shallow set of options.
    
    /** @var \Drupal\book\BookManagerInterface $manager */
    $manager = $this->container
        ->get('book.manager');
    $options = $manager->getTableOfContents($book->id(), 3);
    // Verify that all expected option keys are present.
    $expected_nids = [
        $book->id(),
        $nodes[0]->id(),
        $nodes[1]->id(),
        $nodes[2]->id(),
        $nodes[3]->id(),
        $nodes[6]->id(),
        $nodes[4]->id(),
    ];
    $this->assertEquals($expected_nids, array_keys($options));
    // Exclude Node 3.
    $options = $manager->getTableOfContents($book->id(), 3, [
        $nodes[3]->id(),
    ]);
    // Verify that expected option keys are present after excluding Node 3.
    $expected_nids = [
        $book->id(),
        $nodes[0]->id(),
        $nodes[1]->id(),
        $nodes[2]->id(),
        $nodes[4]->id(),
    ];
    $this->assertEquals($expected_nids, array_keys($options));
}